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Merge pull request #7394 from Morph1984/svc-SetMemoryPermission
kernel: svc: Implement SetProcessMemoryPermission
This commit is contained in:
commit
daecbd3a7f
5 changed files with 64 additions and 12 deletions
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@ -685,7 +685,7 @@ ResultCode KPageTable::UnmapPages(VAddr addr, KPageLinkedList& page_linked_list,
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return ResultSuccess;
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return ResultSuccess;
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}
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}
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ResultCode KPageTable::SetCodeMemoryPermission(VAddr addr, std::size_t size,
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ResultCode KPageTable::SetProcessMemoryPermission(VAddr addr, std::size_t size,
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KMemoryPermission perm) {
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KMemoryPermission perm) {
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std::lock_guard lock{page_table_lock};
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std::lock_guard lock{page_table_lock};
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@ -41,7 +41,7 @@ public:
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ResultCode MapPages(VAddr addr, KPageLinkedList& page_linked_list, KMemoryState state,
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ResultCode MapPages(VAddr addr, KPageLinkedList& page_linked_list, KMemoryState state,
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KMemoryPermission perm);
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KMemoryPermission perm);
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ResultCode UnmapPages(VAddr addr, KPageLinkedList& page_linked_list, KMemoryState state);
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ResultCode UnmapPages(VAddr addr, KPageLinkedList& page_linked_list, KMemoryState state);
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ResultCode SetCodeMemoryPermission(VAddr addr, std::size_t size, KMemoryPermission perm);
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ResultCode SetProcessMemoryPermission(VAddr addr, std::size_t size, KMemoryPermission perm);
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KMemoryInfo QueryInfo(VAddr addr);
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KMemoryInfo QueryInfo(VAddr addr);
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ResultCode ReserveTransferMemory(VAddr addr, std::size_t size, KMemoryPermission perm);
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ResultCode ReserveTransferMemory(VAddr addr, std::size_t size, KMemoryPermission perm);
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ResultCode ResetTransferMemory(VAddr addr, std::size_t size);
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ResultCode ResetTransferMemory(VAddr addr, std::size_t size);
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@ -528,7 +528,7 @@ void KProcess::LoadModule(CodeSet code_set, VAddr base_addr) {
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std::lock_guard lock{HLE::g_hle_lock};
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std::lock_guard lock{HLE::g_hle_lock};
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const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
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const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
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KMemoryPermission permission) {
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KMemoryPermission permission) {
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page_table->SetCodeMemoryPermission(segment.addr + base_addr, segment.size, permission);
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page_table->SetProcessMemoryPermission(segment.addr + base_addr, segment.size, permission);
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};
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};
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kernel.System().Memory().WriteBlock(*this, base_addr, code_set.memory.data(),
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kernel.System().Memory().WriteBlock(*this, base_addr, code_set.memory.data(),
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@ -1169,6 +1169,8 @@ static u32 GetCurrentProcessorNumber32(Core::System& system) {
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return GetCurrentProcessorNumber(system);
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return GetCurrentProcessorNumber(system);
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}
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}
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namespace {
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constexpr bool IsValidSharedMemoryPermission(Svc::MemoryPermission perm) {
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constexpr bool IsValidSharedMemoryPermission(Svc::MemoryPermission perm) {
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switch (perm) {
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switch (perm) {
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case Svc::MemoryPermission::Read:
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case Svc::MemoryPermission::Read:
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@ -1179,10 +1181,24 @@ constexpr bool IsValidSharedMemoryPermission(Svc::MemoryPermission perm) {
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}
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}
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}
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}
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constexpr bool IsValidRemoteSharedMemoryPermission(Svc::MemoryPermission perm) {
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[[maybe_unused]] constexpr bool IsValidRemoteSharedMemoryPermission(Svc::MemoryPermission perm) {
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return IsValidSharedMemoryPermission(perm) || perm == Svc::MemoryPermission::DontCare;
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return IsValidSharedMemoryPermission(perm) || perm == Svc::MemoryPermission::DontCare;
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}
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}
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constexpr bool IsValidProcessMemoryPermission(Svc::MemoryPermission perm) {
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switch (perm) {
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case Svc::MemoryPermission::None:
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case Svc::MemoryPermission::Read:
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case Svc::MemoryPermission::ReadWrite:
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case Svc::MemoryPermission::ReadExecute:
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return true;
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default:
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return false;
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}
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}
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} // Anonymous namespace
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static ResultCode MapSharedMemory(Core::System& system, Handle shmem_handle, VAddr address,
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static ResultCode MapSharedMemory(Core::System& system, Handle shmem_handle, VAddr address,
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u64 size, Svc::MemoryPermission map_perm) {
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u64 size, Svc::MemoryPermission map_perm) {
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LOG_TRACE(Kernel_SVC,
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LOG_TRACE(Kernel_SVC,
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@ -1262,6 +1278,34 @@ static ResultCode UnmapSharedMemory32(Core::System& system, Handle shmem_handle,
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return UnmapSharedMemory(system, shmem_handle, address, size);
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return UnmapSharedMemory(system, shmem_handle, address, size);
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}
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}
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static ResultCode SetProcessMemoryPermission(Core::System& system, Handle process_handle,
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VAddr address, u64 size, Svc::MemoryPermission perm) {
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LOG_TRACE(Kernel_SVC,
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"called, process_handle=0x{:X}, addr=0x{:X}, size=0x{:X}, permissions=0x{:08X}",
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process_handle, address, size, perm);
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// Validate the address/size.
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R_UNLESS(Common::IsAligned(address, PageSize), ResultInvalidAddress);
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R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize);
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R_UNLESS(size > 0, ResultInvalidSize);
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R_UNLESS((address < address + size), ResultInvalidCurrentMemory);
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// Validate the memory permission.
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R_UNLESS(IsValidProcessMemoryPermission(perm), ResultInvalidNewMemoryPermission);
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// Get the process from its handle.
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KScopedAutoObject process =
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system.CurrentProcess()->GetHandleTable().GetObject<KProcess>(process_handle);
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R_UNLESS(process.IsNotNull(), ResultInvalidHandle);
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// Validate that the address is in range.
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auto& page_table = process->PageTable();
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R_UNLESS(page_table.Contains(address, size), ResultInvalidCurrentMemory);
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// Set the memory permission.
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return page_table.SetProcessMemoryPermission(address, size, ConvertToKMemoryPermission(perm));
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}
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static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_address,
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static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_address,
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VAddr page_info_address, Handle process_handle,
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VAddr page_info_address, Handle process_handle,
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VAddr address) {
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VAddr address) {
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@ -1459,10 +1503,14 @@ static void ExitProcess32(Core::System& system) {
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ExitProcess(system);
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ExitProcess(system);
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}
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}
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static constexpr bool IsValidVirtualCoreId(int32_t core_id) {
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namespace {
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constexpr bool IsValidVirtualCoreId(int32_t core_id) {
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return (0 <= core_id && core_id < static_cast<int32_t>(Core::Hardware::NUM_CPU_CORES));
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return (0 <= core_id && core_id < static_cast<int32_t>(Core::Hardware::NUM_CPU_CORES));
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}
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}
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} // Anonymous namespace
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/// Creates a new thread
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/// Creates a new thread
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static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr entry_point, u64 arg,
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static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr entry_point, u64 arg,
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VAddr stack_bottom, u32 priority, s32 core_id) {
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VAddr stack_bottom, u32 priority, s32 core_id) {
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@ -1846,7 +1894,9 @@ static ResultCode ResetSignal32(Core::System& system, Handle handle) {
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return ResetSignal(system, handle);
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return ResetSignal(system, handle);
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}
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}
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static constexpr bool IsValidTransferMemoryPermission(MemoryPermission perm) {
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namespace {
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constexpr bool IsValidTransferMemoryPermission(MemoryPermission perm) {
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switch (perm) {
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switch (perm) {
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case MemoryPermission::None:
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case MemoryPermission::None:
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case MemoryPermission::Read:
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case MemoryPermission::Read:
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@ -1857,6 +1907,8 @@ static constexpr bool IsValidTransferMemoryPermission(MemoryPermission perm) {
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}
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}
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}
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}
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} // Anonymous namespace
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/// Creates a TransferMemory object
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/// Creates a TransferMemory object
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static ResultCode CreateTransferMemory(Core::System& system, Handle* out, VAddr address, u64 size,
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static ResultCode CreateTransferMemory(Core::System& system, Handle* out, VAddr address, u64 size,
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MemoryPermission map_perm) {
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MemoryPermission map_perm) {
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@ -2588,7 +2640,7 @@ static const FunctionDef SVC_Table_64[] = {
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{0x70, nullptr, "CreatePort"},
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{0x70, nullptr, "CreatePort"},
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{0x71, nullptr, "ManageNamedPort"},
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{0x71, nullptr, "ManageNamedPort"},
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{0x72, nullptr, "ConnectToPort"},
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{0x72, nullptr, "ConnectToPort"},
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{0x73, nullptr, "SetProcessMemoryPermission"},
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{0x73, SvcWrap64<SetProcessMemoryPermission>, "SetProcessMemoryPermission"},
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{0x74, nullptr, "MapProcessMemory"},
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{0x74, nullptr, "MapProcessMemory"},
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{0x75, nullptr, "UnmapProcessMemory"},
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{0x75, nullptr, "UnmapProcessMemory"},
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{0x76, SvcWrap64<QueryProcessMemory>, "QueryProcessMemory"},
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{0x76, SvcWrap64<QueryProcessMemory>, "QueryProcessMemory"},
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@ -396,12 +396,12 @@ public:
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CopyCode(nro_addr + nro_header.segment_headers[DATA_INDEX].memory_offset, data_start,
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CopyCode(nro_addr + nro_header.segment_headers[DATA_INDEX].memory_offset, data_start,
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nro_header.segment_headers[DATA_INDEX].memory_size);
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nro_header.segment_headers[DATA_INDEX].memory_size);
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CASCADE_CODE(process->PageTable().SetCodeMemoryPermission(
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CASCADE_CODE(process->PageTable().SetProcessMemoryPermission(
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text_start, ro_start - text_start, Kernel::KMemoryPermission::ReadAndExecute));
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text_start, ro_start - text_start, Kernel::KMemoryPermission::ReadAndExecute));
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CASCADE_CODE(process->PageTable().SetCodeMemoryPermission(ro_start, data_start - ro_start,
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CASCADE_CODE(process->PageTable().SetProcessMemoryPermission(
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Kernel::KMemoryPermission::Read));
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ro_start, data_start - ro_start, Kernel::KMemoryPermission::Read));
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return process->PageTable().SetCodeMemoryPermission(
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return process->PageTable().SetProcessMemoryPermission(
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data_start, bss_end_addr - data_start, Kernel::KMemoryPermission::ReadAndWrite);
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data_start, bss_end_addr - data_start, Kernel::KMemoryPermission::ReadAndWrite);
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}
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}
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